A zero-day (or zero-hour or day zero) attack or threat is an attack that exploits a previously unknown vulnerability in a computer application, meaning that the attack occurs on "day zero" of awareness of the vulnerability.

learn more… | top users | synonyms (1)

4
votes
3answers
126 views

How often do high-end attackers actually use zero-day exploits?

Earlier this week the head of the NSA's Tailored Access Operations unit rather remarkably gave a presentation at the USENIX Enigma security conference. (News coverege here and here; video of the talk ...
14
votes
2answers
875 views

What was behind the surge of Adobe Flash Player vulnerabilities/patches in 2015?

It's no secret that 2015 was a rough year, security-wise, for Adobe's Flash Player. Aside from Adobe itself beginning to essentially deprecate Flash development largely due to Flash Player's ...
1
vote
1answer
56 views

Which Rogers internet compatible router is most secure? [closed]

Without telling you which specific Rogers-provided router, version, nor the terrible but verified security bug that exists for it (them), would any dear somewhat security conscious Rogers customer ...
1
vote
0answers
39 views

How many accounts are affected by the vBulletin breach? At risk? [closed]

vBulletin hack(s) have affected vBulletin, itself (security questions and answers, salts, and hashes of more than 300,000 users of the 345k known to be registered), and Foxit Software (some data for ...
1
vote
1answer
29 views

Reliable Sources for Software Vulnerability Patch Release dates

I have searched in NVD and realized that patch release dates are not published with the specific vulnerability information of an application. Other information like the "update date" do not ...
-3
votes
2answers
371 views

Does Microsoft EMET protect against latest Hacking Team Adobe Flash 0-day exploit?

If I were to not update Adobe Flash and instead used the old version (from before the Hacking Team 0-day exploit was published in the internet), in that case, would Microsoft EMET protect me from the ...
0
votes
3answers
181 views

My Mom's Flash Player [closed]

So I am slightly more than a dilettante when it comes to security but hardly an expert. I have been reading up on the recent Adobe Flash issues and I wanted to ask a couple of questions: My Mom ...
-1
votes
1answer
63 views

indicators of compromise via email servers

Malicious files are commonly infiltrated on to the network via email attachments. Besides awareness and education to my staff to refrain from clicking on suspicious attachments, I would also like to ...
3
votes
2answers
151 views

As a user, how can I defend myself from disclosed unpatched zero-day vulnerabilities?

In the wake of the Hacking Team breach on July 6th, 2015 [1] [2] I heard that some previously unknown zero-day exploits might surface (apparently one for Flash already has). Once these exploits ...
5
votes
1answer
1k views

What is the “Moose” worm and how can I protect myself from it?

I have heard from others that there is a new worm called "moose". This actively targets and exploits home routers. What are the effects of this exploit? How can I protect myself from this? Can I ...
26
votes
1answer
3k views

What is an n-day security attack?

There are several attacks types in computer security. For instance, zero-day attacks consist of attacks that use undisclosed exploits. In contrast, what is an n-day attack? Is it a security concern?
12
votes
1answer
623 views

Why is EC2 not vulnerable to VENOM?

I saw the advisory stating that EC2 instances are not vulnerable to VENOM. My understanding is that EC2 runs on Xen, and that VENOM affects XEN. Can anyone explain why EC2 is not vulnerable? Do ...
2
votes
1answer
577 views

Apache Partial HTTP Request Denial of Service Vulnerability

One of our client scan our site and share following qualys vulnerability. "Apache Partial HTTP Request Denial of Service Vulnerability - Zero Day " We are using "Ubuntu 12.04.5 LTS" with ...
2
votes
0answers
52 views

Information on the Elderwood Project/Platform [closed]

I've read Symantec's whitepaper on the Elderwood Project and the blog update on the Elderwood Platform. They both make for a very interesting read, especially in the zero-day exploit meta-analysis ...
-2
votes
1answer
51 views

What is Satisfiability Modulo Theories [closed]

I came across this term called "Satisfiability Modulo Theories", which when I Googled it, was something that is related to various theories on low level languages. How does this help in discovering ...
3
votes
1answer
223 views

At what criteria should an unpatched machine be considered hacked? [closed]

Since every machine connected to the Internet requires security patches, there is a window of time in which those updates have been released and those machines haven't yet been patched. It is ...
6
votes
3answers
222 views

find if 0-day flash bug was exploited (on a particular machine)

There have been several critical 0-day exploits in the past days/weeks in Flash alone. Nobody knows how long the 0-days have been exploited, and it is reasonable to expect that there are 0-days being ...
7
votes
2answers
503 views

How exactly was Sony Pictures hacked November 2014? [closed]

There is lots of media coverage like this one but I have not yet been able to find details on how the hackers got into the network, the servers and the users' systems. So what vulnerabilities / ...
4
votes
2answers
150 views

How do honeypots remain secure to 0days and newer exploits?

If honeypots are designed for a specific set of exploits, such as SQL injection and XSS, how do they protect themselves against other exploits? For instance, if I created a honeypot a few months ago, ...
1
vote
1answer
183 views

Clarification about the post: Russian hackers use ‘zero-day’ to hack NATO, Ukraine in cyber-spy campaign

I have encountered the following article on Washington post: Russian hackers use ‘zero-day’ to hack NATO, Ukraine in cyber-spy campaign. As always in such kind of articles the publication sounds ...
-2
votes
2answers
185 views

where can I find list of zero day vulnerability? [closed]

I want to have list of zero day vulnerability, Could any one intuduce some site which annonce them?
3
votes
4answers
512 views

How should I defend against zero-day attack on SSH?

Vulnerabilities are discovered everyday. The recent Heart bleed attack caught many people off guard. I was wondering if a serious flaw was to be discovered that allows unfettered access to SSH, how ...
1
vote
0answers
172 views

What is known about recent zero day flaw with Tails up to this point in time and is Tails able to keep us anonymous from a global adversary? [closed]

Following is a excerpt from COMPUTERWORLD Yesterday, in talking about the zero-day vulnerability in Tails, Exodus Intelligence wrote: "We publicized the fact that we’ve discovered these ...
0
votes
3answers
273 views

What sites give the latest information on security threats especially zero day malware [closed]

What websites give the latest information on zero day malware or other exploits newly introduced.
6
votes
2answers
329 views

Zero-Day Exploit targeting Internet Explorer Versions 9 through 11

Few days ago, FireEye has found a vulnerability, which affects all versions of IE (even the latest 11). Microsoft has official statement regarding this issue. FireEye wrote a technical article on ...
-1
votes
1answer
103 views

How can I get confirmation of new security problem in struts2?

I just read about this new struts2 security problem. I want to tell our developers to patch it, but I wish for some more sources first. The only source he cites is in another language. I guess I ...
9
votes
1answer
1k views

Heartbleed how to find out applications using statically compiled version of openssl?

We're analysing issue at work and I wondering how to find out if there's any binary with a statically compiled version of openssl which includes this bug. Would it be possible to find a fingerprint ...
27
votes
6answers
17k views

Heartbleed and Routers/ASAs/other

OK, so I first heard about heartbleed a few hours ago through the stack exchange questions feed, and after a moments panic, realised that the only web servers I have secured via OpenSSL are on the ...
-5
votes
1answer
136 views

How can mp3blaster vulnerability affect my linux OS? [closed]

Mp3blaster is a terminal mp3 player running a UNIX-like operating system, e.g. Linux, Free/Net/OpenBSD, etc. I usually use this player for playing my music, but yesterday I found a blog which claim ...
39
votes
2answers
6k views

How are zero days found?

I believe that it was leaked recently that the NSA has a long list of zero day exploits on various software "for a rainy day," ie: for whenever it would be useful to them. The question is, how do ...
0
votes
2answers
285 views

Why is always possible to discover and exploit new zero-day vulnerabilities? [closed]

Couldn't an updated server/computer be completely sealed against attacks? Why can't you block any incoming request for running something in your server? For example, in my naiv view, a mail server ...
-1
votes
2answers
1k views

How much are 0-days worth? [closed]

I got discussing this topic with someone recently and we couldn't reach a consensus so I thought I should ask here. There are commonly thrown around figures regarding the cost of buying a ...
7
votes
2answers
1k views

How can I detect (or inventory) all DLLs that don't use ASLR?

Based on this IE zero day, I'm interested in listing all DLLs in our systems that have been compiled to not work with ASLR. Ideally, I'd like to analyze a static file and not load it into memory to ...
2
votes
2answers
181 views

Security Practices by Employees in a Corporate Environment

Consider the following situation : 1. Somehow my boss's system got infected with a malware ( He visited one of the Java exploits website). 2. He sends a PDF document containing the requirement ...
5
votes
4answers
567 views

What is zero day?

More specifically, if a website is using an application already known to have a flaw as part of the larger service it offers (so, say it's using a version of Apache known to have a flaw, and the ...
8
votes
2answers
510 views

How to keep using Java 6 securely, despite its unpatch vulnerabilities

Given that Java 6 is now deprecated by Oracle and there recently has been notification of a 0day (that will exist forever now that Oracle is not patching JRE6), what can we do to prevent drive-by ...
0
votes
2answers
243 views

Tracing root compromises

In regards to the following: 0day Linux/CentOS SSHd Spam Exploit — libkeyutils.so.1.9 SSHD Rootkit There apparently seems to be a bunch of redhat server being backdoored via a library. Does ...
3
votes
2answers
3k views

How does Java 7 update 11 fix the security vulnerability?

There is a new Java released a couple days ago to resolve a hole that was recently discovered. (Oracle, US-CERT, NVD/NIST) In my initial reading about this update 11, I saw clearly where it by ...
23
votes
3answers
2k views

Should I be disabling Java?

First it was Apple, now it's the US government... U.S. urges users to disable Java; Apple disables some remotely New malware exploiting Java 7 in Windows and Unix systems How serious is this ...
2
votes
1answer
557 views

How disable Java in Chrome 23?

Well in case someone doesn't know yet... there is a new Java zero day. I'm trying to disable it on Chrome but I can't find any option. Google searches says that the option for deactivate it is on ...
3
votes
2answers
856 views

Where do I get started in terms of learning how to exploit Java and Flash vulnerabilities? or browser exploitation in general

Another Java 0day was discovered today which got me thinking how browser exploitation (remote execution on clients browser) works. I am unable to find any books or resources online about browser ...
3
votes
1answer
657 views

How does one test AV against zero-day malware?

Lately, I've read several articles about anti-malware software and one thing caught my eye - ability to detect zero-day attacks. In short - how does anti-malware / anti-virus industry test their own ...
8
votes
3answers
1k views

How to subscribe to information about new vulnerabilities in selected products?

In order to be informed about critical vulnerabilities in selected products I'd want to subscribe to some list about them. I'd want to configure the list of products by myself. The question: Where ...
2
votes
4answers
814 views

Virus won't be picked up by Antivirus tools

Today we found a virus / trojan on our network which has thus far: Hidden all files and folders Replaced the hidden files and folders with executables of itself, with matching icons, and renamed ...
15
votes
3answers
872 views

If I find or create a 0day exploit, can I be held liable for releasing out to the public?

If I found or created a 0day and decided to immediately release it into the wild (Giving a P.o.c w/ source). But not using it to actually exploit anything. Can I be held liable for it?
10
votes
2answers
173 views

What are the likely effects of increased government spending on “Cyber Weapons” on the software industry?

From the conference scene and news this year it seems probable that there's an increased amount of spending from governmental agencies on what it getting termed "Cyber Weapons". A key component of ...
2
votes
3answers
546 views

Can I tell which applications embed Internet Explorer at a command prompt?

A recently discovered vulnerability affects Internet Explorer versions up to version 9, running on Windows XP, Vista, and Windows 7. This arstechnica article quotes HD Moore as saying, Just keep ...
5
votes
3answers
552 views

Where can I get security breach alerts?

I've been following a mish-mash of Google News alerts as well as some 'security' influencers on Twitter, but have a feeling there's a more efficient way to deal with this out there...
2
votes
1answer
331 views

How does malware such as Stuxnet and Flamer propagate through USB memory sticks?

The best explanation I found is from this article but it still is unclear to me. Apparently a new vulnerability has been found involving .lnk files where when a folder on the memory stick containing ...
3
votes
1answer
134 views

Suddenly scans for 'formvars.php'

Suddenly, starting from about yesterday-evening (gmt+2), I get lots of -what I suspect are- 'hits' from bots that are looking variations of this file: /somerealpath/includes/formvars.php I'm ...